在背景图像上定位多个Div

<div class="container">
  <div class="box1"></div>
  <div class="box2"></div>
  <div class="box3"></div>
</div>

.container {
  background-image: url("背景图像地址");
  background-repeat: no-repeat;
  background-size: cover;
  position: relative;
  width: 100%;
  height: 100vh;
}

.box1 {
  position: absolute;
  top: 50px;
  left: 50px;
  width: 100px;
  height: 100px;
  background-color: red;
}

.box2 {
  position: absolute;
  top: 200px;
  left: 200px;
  width: 150px;
  height: 150px;
  background-color: blue;
}

.box3 {
  position: absolute;
  top: 400px;
  left: 400px;
  width: 200px;
  height: 200px;
  background-color: green;
}